- aeon
- annotate
- anon
- atone
- atop
- hone
- hoop
- hoot
- hope
- hotpot
- neon
- neonate
- none
- nonet
- noon
- nope
- notate
- note
- oaten
- oath
- onto
- open
- opponent
- panettone
- pantheon
- peon
- phone
- phono
- photo
- photon
- poet
- pone
- pontoon
- pooh
- poop
- pope
- poppa
- poppet
- potato
- potent
- potentate
- tattoo
- teapot
- tenon
- tone
- tonne
- toon
- toot
- tooth
- tope
- tote